CN108302084A - A kind of bottom structure for locking mechanism with bidirectional hydraulic - Google Patents

A kind of bottom structure for locking mechanism with bidirectional hydraulic Download PDF

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Publication number
CN108302084A
CN108302084A CN201711178306.6A CN201711178306A CN108302084A CN 108302084 A CN108302084 A CN 108302084A CN 201711178306 A CN201711178306 A CN 201711178306A CN 108302084 A CN108302084 A CN 108302084A
Authority
CN
China
Prior art keywords
oil duct
cylinder
locking
hydraulic
oil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201711178306.6A
Other languages
Chinese (zh)
Inventor
姚泽功
向小斌
杨万虎
郝建平
焦东
李婧
李泽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HUBEI JIANGSHAN SPECIAL PURPOSE VEHICLE CO Ltd
Original Assignee
HUBEI JIANGSHAN SPECIAL PURPOSE VEHICLE CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HUBEI JIANGSHAN SPECIAL PURPOSE VEHICLE CO Ltd filed Critical HUBEI JIANGSHAN SPECIAL PURPOSE VEHICLE CO Ltd
Priority to CN201711178306.6A priority Critical patent/CN108302084A/en
Publication of CN108302084A publication Critical patent/CN108302084A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423Component parts; Constructional details
    • F15B15/1428Cylinders
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20Other details, e.g. assembly with regulating devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20Other details, e.g. assembly with regulating devices
    • F15B15/26Locking mechanisms
    • F15B15/262Locking mechanisms using friction, e.g. brake pads

Abstract

A kind of bottom structure for locking mechanism with bidirectional hydraulic, including piston rod, cylinder barrel, cylinder bottom, the cylinder bottom main body is tetragonal body, cylinder bottom body interior upper end is provided with the first oil duct and the second oil duct for being connect with external hydraulic system, left end is provided with the third oil duct and the 4th oil duct axially being connect with the first oil duct, and right end is provided with the 5th oil duct and the 6th oil duct axially being connect with the second oil duct;It is surveyed in the cylinder bottom and is provided with the first oilhole being connect with the 6th oil duct, outside is provided with the second oilhole being connect with the 4th oil duct;The third oil duct is connected to the 6th oil duct, and the 4th oil duct is connected to the 5th oil duct, and inside is respectively arranged with a hydraulic locking apparatus;Structure of the invention is compact, and built-in bidirectional hydraulic locks mechanism in hydraulic cylinder, reducing external control unit, can effectively reduce cost, while being more suitable for compact-sized, the limited product structure use in space.

Description

A kind of bottom structure for locking mechanism with bidirectional hydraulic
Technical field
The present invention relates to hydraulic locking cylinder mode technical field more particularly to a kind of cylinder bottoms for locking mechanism with bidirectional hydraulic Structure.
Background technology
Currently, device that the locking mode of hydraulic cylinder is mainly mechanically locked and being locked by control element mode Tight device realizes the locking of hydraulic cylinder.Wherein, the device locked by control element mode be divided into for:
(1)Reversal valve locking device;
(2)Check valve locking device;
(3)Hydraulic control one-way valve locking device;
(4)Dual hydraulic control one-way valve(Hydraulic lock)Locking device.
Wherein(1)、(2)、(3)It is how many on locking precision, locked position, locking direction to have some shortcomings, and(4) It is then relatively accurate and by a kind of common hydraulic locking mode, the precision and the reliability during use of locking all obtain Sufficient verification.But, small-scale liquid cylinder pressure economical for some, on the one hand cost can be made substantially by increasing external bidirectional hydraulic lock Increase, on the other hand the spatial position of installation also limits installing and using for hydraulic lock.
Invention content
To solve above-mentioned technological deficiency, the present invention provides a kind of bottom structure for locking mechanism with bidirectional hydraulic, Built-in bidirectional hydraulic locking mechanism in hydraulic cylinder, reducing external control unit, while it is effective save it is empty inside hydraulic cylinder Between use.
The technical solution adopted by the present invention to solve the technical problems is:A kind of cylinder bottom knot for locking mechanism with bidirectional hydraulic Structure, it is characterised in that:Including piston rod, cylinder barrel, cylinder bottom, the cylinder bottom main body is tetragonal body, in cylinder bottom body interior upper end It is provided with the first oil duct and the second oil duct for being connect with external hydraulic system, left end is provided with axially to be connect with the first oil duct Third oil duct and the 4th oil duct, right end is provided with the 5th oil duct and the 6th oil duct axially being connect with the second oil duct;Described It is surveyed in cylinder bottom and is provided with the first oilhole being connect with the 6th oil duct, outside is provided with the second oilhole being connect with the 4th oil duct;Institute The third oil duct stated is connected to the 6th oil duct, and the 4th oil duct is connected to the 5th oil duct, and inside is respectively arranged with a hydraulic lock Tight device.
In cylinder bottom one end, setting is there are one circular step, and other end connection is set on the flat-shaped body there are one flat-shaped body It is equipped with circular hole.
The third oil duct, the 5th oil duct opening are provided with compatible first nut;4th oil duct, the 6th oil duct Opening is provided with compatible second nut.
It is respectively arranged with the first hydraulic fluid port and the second hydraulic fluid port on first oil duct and the second oil duct.
O-ring is socketed on the poppet head, set solution has second spring on tail portion.
The hydraulic locking apparatus includes spool, O-ring, second spring, steel ball, the first spring.First bullet Spring one end is connect with the screw rod axle center of the second nut, and the other end is connect with steel ball.
The beneficial effects of the invention are as follows:Structure of the invention is compact, and built-in bidirectional hydraulic locking mechanism is reduced in hydraulic cylinder External control unit, can effectively reduce cost, while be more suitable for compact-sized, and the limited product structure in space uses.
Description of the drawings
Fig. 1 is the assembling schematic diagram of the present invention.
Fig. 2 is the hydraulic cylinder front view of the present invention.
Fig. 3 is the structural front view of cylinder bottom of the present invention.
Fig. 4 is the structure top view of cylinder bottom of the present invention.
Fig. 5 is the structure left view of cylinder bottom of the present invention.
Fig. 6 is the sectional view of the B-B direction cylinder bottom oil-way of Fig. 3.
Fig. 7 is the sectional view along A-A of Fig. 2.
Fig. 8 is the sectional view along A-A of Fig. 2.
In figure:1, piston rod, 2, cylinder barrel, 3, cylinder bottom, the 4, first hydraulic fluid port, 5, washer, the 6, first spring, 7, steel ball, 8, Two springs, 9, O-ring, 10, spool, the 11, first nut, the 12, second nut, the 13, second hydraulic fluid port, 3-1, the first oil duct, 3-2, Second oil duct, 3-3, third oil duct, 3-4, the 4th oil duct, 3-5, the 5th oil duct, 3-6, the 6th oil duct, 3-7, the first oilhole, 3- 8, the second oilhole, 3-9, circular step, 3-10, tetragonal body, 3-11, flat-shaped body, 3-12, circular hole.
Specific implementation mode
Presently in connection with attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, this figure is to simplify Schematic diagram, the basic structure of the invention will be illustrated schematically only.
According to Fig. 1, Fig. 2, a kind of bottom structure for locking mechanism with bidirectional hydraulic of the invention, including piston rod 1, Cylinder barrel 2, cylinder bottom 3.
According to fig. 3, shown in Fig. 4, there are one circular step 3-9 for the setting of described 3 one end of cylinder bottom, and there are one other end connections Flat-shaped body 3-11;It is provided with circular hole 3-12 on the flat-shaped body 3-11.
According to Fig. 5, Fig. 6,3 body interior upper end of cylinder bottom is provided with first for being connect with external hydraulic system Oil duct 3-1 and the second oil duct 3-2, left end are provided with and the first oil duct 3-1 third oil duct 3-3 axially connecting and the 4th oil duct 3- 4, right end is provided with and the second oil duct 3-2 the 5th oil duct 3-5 axially connecting and the 6th oil duct 3-6;3 inside of cylinder bottom is set It is equipped with the first oilhole 3-7 being connect with the 6th oil duct 3-6, outside is provided with the second oilhole 3-8 being connect with the 4th oil duct 3-4; The third oil duct 3-3 is connected to the 6th oil duct 3-6, and the 4th oil duct 3-4 is connected to the 5th oil duct 3-5.
Fig. 7 show cylinder bottom bidirectional hydraulic lock locking state.When no system pressure influences, top spool 10 is by the second bullet Spring 8 acts on, and moves right far from top steel ball 7, and top steel ball 7 is acted on by the first spring 6, is moved right, and closes the second oilhole 3-8 oil supply loops, while lower part spool is acted on by second spring, is moved downward far from top steel ball 7, lower part steel ball is by the first bullet Spring acts on, and moves downward, and closes the first oilhole 3-7 oil supply loops, promotes piston rod 1 two-way locked.In external system no pressure In the case of supply, piston rod 1 can realize bidirectional locking at an arbitrary position, fixed.
Fig. 8 show cylinder bottom bidirectional hydraulic lock motion state.When the first 4 fuel feeding of hydraulic fluid port, system pressure rises, and promotes top Spool 10 moves downward, and top steel ball 7 is pushed to move downward simultaneously, opens the second oilhole 3-8 oil supply loops, while lower part spool It is influenced, is moved right by pressure rising, lower part steel ball is pushed to move right simultaneously, open the first oilhole 3-7 oil supply loops, piston The steady end motion to the left of bar 1 is stretched out;When the second 13 fuel feeding of hydraulic fluid port, system pressure rises, and promotes lower part spool 10 to move right, pushes away Dynamic lower part steel ball moves right simultaneously, opens the first oilhole 3-7 oil supply loops, while top spool 10 is influenced by pressure rising, It moves downward, top steel ball 7 is pushed to move downward simultaneously, open the second oilhole 3-8 oil supply loops, piston rod 1 is steadily to right end Movement is withdrawn.

Claims (6)

1. a kind of bottom structure for locking mechanism with bidirectional hydraulic, including piston rod(1), cylinder barrel(2), cylinder bottom(3), feature exists In:The cylinder bottom(3)Main body is tetragonal body(3-10), in cylinder bottom(3)Body interior upper end, which is provided with, to be used for and external hydraulic First oil duct of system connection(3-1)With the second oil duct(3-2), left end is provided with and the first oil duct(3-1)Axially connected Three oil ducts(3-3)With the 4th oil duct(3-4), right end is provided with and the second oil duct(3-2)The 5th oil duct axially connected(3-5)With 6th oil duct(3-6);The cylinder bottom(3)Interior survey is provided with and the 6th oil duct(3-6)First oilhole of connection(3-7), outside It is provided with and the 4th oil duct(3-4)Second oilhole of connection(3-8);The third oil duct(3-3)With the 6th oil duct(3-6)Even It is logical, the 4th oil duct(3-4)With the 5th oil duct(3-5)Connection, and inside is respectively arranged with a hydraulic locking apparatus.
2. a kind of bottom structure for locking mechanism with bidirectional hydraulic according to claim 1, it is characterised in that:The cylinder Bottom(3)There are one circular steps for one end setting(3-9), there are one flat-shaped bodies for other end connection(3-11);The flat-shaped body(3- 11)On be provided with circular hole(3-12).
3. a kind of bottom structure for locking mechanism with bidirectional hydraulic according to claim 1, it is characterised in that:Described Three oil ducts(3-3), the 5th oil duct(3-5)Opening is provided with compatible first nut(11);4th oil duct(3- 4), the 6th oil duct(3-6)Opening is provided with compatible second nut(12).
4. a kind of bottom structure for locking mechanism with bidirectional hydraulic according to claim 1, it is characterised in that:Described One oil duct(3-1)With the second oil duct(3-2)On be respectively arranged with the first hydraulic fluid port(4)With the second hydraulic fluid port(13).
5. a kind of bottom structure for locking mechanism with bidirectional hydraulic according to claim 1, it is characterised in that:The valve Core(10)O-ring is socketed on head(9), set solution has second spring on tail portion(8).
6. a kind of bottom structure for locking mechanism with bidirectional hydraulic according to claim 1, it is characterised in that:The hydraulic pressure Locking device includes spool(10), O-ring(9), second spring(8), steel ball(7), the first spring(6);First spring (6)One end and the second nut(12)The connection of screw rod axle center, the other end and steel ball(7)Connection.
CN201711178306.6A 2017-11-23 2017-11-23 A kind of bottom structure for locking mechanism with bidirectional hydraulic Pending CN108302084A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711178306.6A CN108302084A (en) 2017-11-23 2017-11-23 A kind of bottom structure for locking mechanism with bidirectional hydraulic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711178306.6A CN108302084A (en) 2017-11-23 2017-11-23 A kind of bottom structure for locking mechanism with bidirectional hydraulic

Publications (1)

Publication Number Publication Date
CN108302084A true CN108302084A (en) 2018-07-20

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ID=62869589

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711178306.6A Pending CN108302084A (en) 2017-11-23 2017-11-23 A kind of bottom structure for locking mechanism with bidirectional hydraulic

Country Status (1)

Country Link
CN (1) CN108302084A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109114066A (en) * 2018-08-27 2019-01-01 中国飞机强度研究所 A kind of pressurized strut

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109114066A (en) * 2018-08-27 2019-01-01 中国飞机强度研究所 A kind of pressurized strut
CN109114066B (en) * 2018-08-27 2020-02-07 中国飞机强度研究所 Actuating cylinder

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